201000210251 has 2 divisors, whose sum is σ = 201000210252. Its totient is φ = 201000210250.

The previous prime is 201000210247. The next prime is 201000210427. The reversal of 201000210251 is 152012000102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201000210251 - 2² = 201000210247 is a prime.

It is not a weakly prime, because it can be changed into another prime (201000230251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100500105125 + 100500105126.

It is an arithmetic number, because the mean of its divisors is an integer number (100500105126).

Almost surely, 2^201000210251 is an apocalyptic number.

201000210251 is a deficient number, since it is larger than the sum of its proper divisors (1).

201000210251 is an equidigital number, since it uses as much as digits as its factorization.

201000210251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40, while the sum is 14.

Adding to 201000210251 its reverse (152012000102), we get a palindrome (353012210353).

The spelling of 201000210251 in words is "two hundred one billion, two hundred ten thousand, two hundred fifty-one".